Justin Bieber SPITS IN COLUMBUS DJ’S FACE … Allegedly!!!!

An Ohio man claims Justin Bieber confronted him inside a bar and SPIT IN HIS FACE this weekend … all because JB thought he was secretly taking pics.

The man — a DJ who performed at the Social Room on Park Street in Columbus, OH earlier that evening — called in to the Dave and Jimmy show on WNCI and explained the saga … saying it all started in the VIP room.

“Two of Bieber’s bouncers approached me and said I was trying to take pictures of Bieber.”